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TROUBLESHOOTING GUIDE
KX-F680BX/KX-F2681BX
3-8. ANALOG BOARD SECTION
For example
complaint
HANDSET transmitting
SP-PHONE transmitting
Returns from the customer has 2 of the defects.
How can you repair this unit?
We usually check the signal flow with the circuit schematic.
(If defect is only one item, we check only one of the signal routes.
Maybe something is defective on that route.)
If there is more than one defect, you need to check some of the routes.
At first, you should check the area where there are common components on
these signal routes.
Please see the check sheet (next page).
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